Designing Mobile App for Business website

I am looking for bids from experts who can create a downloadable mobile app for my website www.mbaxi.com. This is simply soliciting bids to help educate me on what I need to know before assigning the mobile app as a project. What I am looking for: a. The person will review [login to view URL] b. Suggest time and cost estimates c, functionality to be expected from the mobile app with possibly range of prices and time d. Portfolio of similar projects completed by the programmer e. Any help in evaluating you and other developers Based on these bids, I will then place a project to that person who seems to be most knowledgeable and cost-effective. Thanks